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Electromagnetic Field Theory

Electromagnetic Field Theory
In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is

 4.32.
  2.16.
 Infinity.
 Zero.

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Electromagnetic Field Theory
Ohm’s law in point from field theory can be expressed as

 R = ρ × ( l / A).
 J = σE.
 J = E / σ.
 V = IR.

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Electromagnetic Field Theory
The magnetic field at any point on the axis of current carrying circular coil will be

 at an angle 45o with the axis.
 parallel to axis.
 zero.
 perpendicular to axis.

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Electromagnetic Field Theory
Tropospheric scatter propagation is not subject to any fading.

False
True

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Electromagnetic Field Theory
The electric field on a plane is decribed by . The field due to

 a dipole and a monopole.
 a dipole.
 none of above.
 a monopole.

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Electromagnetic Field Theory
Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is

 0.447.
 0.477.
 0.01.
 0.577.

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MORE MCQ ON Electromagnetic Field Theory

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